The third New Philharmonic Concert took place at St. James's
Hall on Monday, under the direction of the entrepreneur, Dr. Wylde. The chief performance of the evening was Spohr's celebrated Symphony "Die Weike der Tone," (or 'The Power of Sound" as the title is not very accurately translated) ;-a descriptive work full of the poetry of music, and certainly the chef d'osuvre of the illustrious master. It received ample justice from Dr. Wylde's strong and excellent orchestra, and its beauties appeared to be fully appreciated by the audience. Of nearly equal magnitude was Beethoven's pianoforte Concerto in E flat, performed by Mr. John Francis Barnett, a young pianist of great and rising reputation, who has lately been distinguishing himself by his performances at the principal concerts in Germany. He is truly a fine player, and his youthful fire and enthusiasm gave a peculiar charm to his performance. The Overtures were by Mendelssohn-" The Midsummer Night's Dream," and "Buy Bias," both admirably played. The singers were Mademoiselle Vaneri and Signor Belart, both of her Majesty's Theatre. They were very successful, particularly in the fine duet " Di pescatore ignobile" from Luerezia Borgia. The hall was crowded.